Shannon had 75 red erasers and 60 grey erasers. Shannon gave away 40% of her red erasers and 50% of her grey erasers. What percentage of her erasers left was grey?
Percentage of red erasers left
= 100% - 40%
= 60%
Number of red erasers left
= 60% x 75
= 60100 x 75
= 45
Percentage of grey erasers left
= 100% - 50%
= 50%
Number of grey erasers left
= 50% x 60
=
50100 x 60
= 30
Total number of erasers left
= 45 + 30
= 75
Percentage of erasers left that are grey
=
3075 x 100%
= 40%
Answer(s): 40%
